A. Lange & Söhne is relaunching its horological opus magnum with the two eponymous complications – it had its debut just last year – in a special Handwerkskunst edition.
Limited to 15 pieces, this 41.9 mm platinum-cased watch offers a full perpetual calendar display including a moon-phase, leap year, month, day, outsize date and day/night indicator. The month display is especially cool as it utilizes a peripheral ring around the outside of the dial that is read at six o’clock. To assure perfect legibility, the tourbillon mechanism with the patented stop function can be observed only on the caseback side. In this special edition, the dial – crafted from solid white gold – is decorated with a combination of tremblage and relief engraving techniques. The same free-hand engraving technique is used to decorate the large central rotor in 21-carat gold with a platinum centrifugal mass.
The polish on the upper side of the tourbillon cage is also a typical Lange quality hallmark. Four screwed gold chatons and a diamond endstone bearing for the tourbillion are the grand finale of Lange’s “Handwerkskunst” extravaganza.
The Lange 1 Tourbillon Perpetual Calendar Handwerkskunst is a special edition limited to 15 pieces, exclusively available through the eleven international A. Lange & Söhne Boutiques.
[Via – Worldtempus]